以下程序的运行结果是:x = 10; y = 20; z = 30if x < y: z = x x = y y = z
A.10, 20, 30
B.10, 20, 20
C.20, 10, 10
D.20, 10, 30
What can we know about Nancy's roommate?
A. Her roommate’s bad lifestyle nearly makes Nancy mad.
B. Her roommate always listens to music alone at midnight.
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